BEARING - NEEDLE (Komatsu KO3EB-13-12440)

A worn needle bearing can cause irregular rotation and increased vibration in the supported shaft. This aftermarket replacement part references the Komatsu catalog number KO3EB-13-12440. Needle bearings use thin cylindrical rollers to reduce friction between rotating surfaces. A common failure consequence is excessive play leading to misalignment and premature wear of adjacent components. In a typical usage context, these bearings support radial loads in compact assemblies where space is limited. The part is a needle-type bearing, which provides a plain mechanical function of enabling smooth rotational motion. Verify the serial number or application, then call (562) 693-7748.

Part number variants: KO3EB-13-12440, ko3eb-13-12440, KO3EB1312440, ko3eb1312440